Method of operating acceleration sensor and electronic device thereof
Provided is an acceleration sensor operating method of an electronic device. The method includes checking whether at least one movement generation means operates. The method also includes changing a sampling frequency of the acceleration sensor when the movement generation means operates. The method further includes receiving a sensor value of the acceleration sensor according to the changed sampling frequency.
1. A method in an electronic device, the method comprising:
identifying whether at least one vibrator in the electronic device operates;
changing a sampling frequency of an acceleration sensor in the electronic device to a higher frequency than a vibrating frequency of the vibrator, upon identifying that the vibrator operates;
obtaining sensor data by using the acceleration sensor that operates based on the changed sampling frequency; and
obtaining refined sensing data by using a filter of the electronic device, the filter removing components of the vibration frequency from the sensing data.
2. The method of claim 1 , wherein the sampling frequency of the acceleration sensor before the change is in a range of about 10 Hz to about 20 Hz.
3. The method of claim 1 , wherein the changed sampling frequency of the acceleration sensor is in a range of about 80 Hz to about 100 Hz.
4. The method according to claim 1 , wherein the filtering-means is a low path filter (LPF).
5. The method according to claim 1 , further comprising, after the obtaining of the refined sensing data,
identifying whether an operation of the vibrator stops; and
changing the sampling frequency of the acceleration sensor into a predetermined sampling frequency upon identifying that the operation of the vibrator stops.
6. The method of claim 5 , wherein the changing of the sampling frequency of the acceleration sensor into the predetermined sampling frequency comprises restoring to the sampling frequency of the acceleration sensor before the change upon identifying that the vibrator operates.
7. The method of claim 5 , wherein the changing of the sampling frequency of the acceleration sensor into the predetermined sampling frequency comprises:
identifying a currently running program mode after the operation of the vibrator stops; and
changing the sampling frequency of the acceleration sensor to a sampling frequency corresponding to the identified program mode.
8. An electronic device comprising:
at least one acceleration sensor configured to operate based on a sampling frequency for obtaining sensing data;
at least one vibrator;
a filter; and
at least one processor operatively coupled to the acceleration sensor, the vibrator and the filter, configured to:
identify whether the vibrator operates,
change a sampling frequency of the acceleration sensor to a higher frequency than a vibrator frequency of the vibrator, upon identifying that the vibrator operates, and
obtain refined sensing data by using the filter, the filter removing components of the vibrating frequency from the sensing data, wherein the sensing data is obtained based on the changed sampling frequency by the acceleration sensor.
9. The electronic device of claim 8 , further comprising a switch configured to establish a path from the acceleration sensor to the processor through the filter according to an operation of the vibrator.
10. The electronic device of claim 9 , wherein the processor is further configured to change the sampling frequency of the acceleration sensor into a predetermined sampling frequency upon identifying that the operation of the vibrator stops.
11. The electronic device of claim 10 , wherein the processor is configured to:
identify a currently performed program mode after the operation of the vibrator stops, and
change the sampling frequency of the acceleration sensor to a sampling frequency corresponding to the identified program mode.